Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1979-07-02
1981-10-13
Dixon, Harold A.
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307223C, 307225C, 307269, H03K 2100, H03K 513
Patent
active
042950562
ABSTRACT:
The frequency divider allows division of the frequency of two signals in phase opposition .phi..sub.1 (t) and .phi..sub.2 (t). A shift register 10 comprises an assembly of transistors and capacitors which form a plurality of cells connected one after the other, each cell being comprised of two identical stages which are connected in series and are supplied respectively by the periodic signals. Means for detecting particular stages of the register comprise the MOS transistors T.sub.8, T.sub.9, and T.sub.10. Means for producing a signal with a frequency which is a sub-multiple of that of the said periodic signals comprise the transistors T.sub.11 and T.sub.12, the transistor T.sub.13, the capacitor C.sub.7 and the capacitor C.sub.9. The divider is especially suitable for use in quartz oscillator watches.
REFERENCES:
patent: 3801826 (1974-04-01), Gorski
patent: 3922567 (1975-11-01), Adam et al.
patent: 3946225 (1976-03-01), Stein
patent: 4193037 (1980-03-01), Kyu
patent: 4214174 (1980-07-01), Dickson
Dixon Harold A.
Ebauches S.A.
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